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Summary of Contents for Marley Geareducer 20 Series
- Page 1 M A N U A L Series 20, 20T & 20.1 STANDARD AND TYPE CC (EXTENDED FAN SHAFT) ® GEAREDUCER Field Repair Instructions JANUARY 1992 RM-20H – 1 –...
- Page 2 Series 20, 20T & 20.1 Cross Section Figure 1. Gear Match Numbers and Setting Data – 2 –...
- Page 3 Field Repair Instructions FOR SERIES 20, 20T & 20.1 MARLEY GEAREDUCER STANDARD AND TYPE CC (EXTENDED FAN SHAFT) GENERAL the fan shaft (Item 10). Loosely attach plate to gear hub and pull against plate with hub puller. A metal disc should Geareducers can be repaired in the field;...
- Page 4 Figure 2. Exploded Cross-Section Series 20, 20T & 20.1 Geareducer – 4 –...
- Page 5 Figure 3. Gear Backlash Measurement Figure 4. Bottom Cap Early models were supplied with a gasket between the case and bottom cap. In place of gasket, use Permatex "Form-A-Gasket" No. 2 as shown. – 5 –...
- Page 6 ASSEMBLY Provide a sleeve to protect the seal lip as it passes over the shaft keyway. Shim stock .010 to .015 inch thick can Before assembling a new pinion gear in the pinion cage, check be used for this sleeve as long as the lapping edge is match numbers on pinion gear and spiral bevel ring gear to be smoothed off and the seal is turned with the lap in the certain that they are a matched set.
- Page 7 The correct gear position is determined by the gear tooth cannot be obtained, the Geareducer should be returned to contact pattern and by the backlash. Marley’s Olathe, Kansas plant in exchange for a factory reconditioned unit. With the “X” marked tooth on the pinion gear engaged between the two “X”...
- Page 8 Seasonal temperature changes may require one viscosity of oil for summer operation and another for winter operation. Use If you must use any oil other than Marley factory approved oil, the following table as a guide. the lubricant must not contain any additives (such as deter- Turbine-type mineral oils conforming to the viscosity requirements outlined in Table I may be used.
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